JP6320774B2 - Bandage and manufacturing method thereof - Google Patents

Description

  The present invention relates to a bandage that is used by being stretched when fixed to a body, and a method for manufacturing the same.

  The bandage is usually stretchable and is attached to the body while being stretched by hand. This is because the bandage is firmly fixed to the body by increasing the tension of the bandage so that the bandage does not come loose after attachment. However, how much the bandage should be extended is determined by the experience and intuition of the operator. Therefore, it is often difficult for bandages to be worn by unskilled persons, such as doctors and nurses. The “bandage” here includes an adhesive sheet and an adhesive tape having an adhesive layer formed on one surface.

  In order to cope with the above problem, a bandage printed with a pattern for determining the degree of expansion is known (see Patent Documents 1 and 2). In this type of bandage, the pattern is deformed when stretched, so the extent of stretching can be determined by looking at the deformed pattern. For example, Patent Documents 1 and 2 disclose that an appropriate degree of expansion is determined by changing a rectangle or an isosceles triangle to a square or an equilateral triangle, respectively.

JP 2002-78731 A JP 2007-37792 A

  However, although it is possible to some extent to visually determine whether the target rectangle or isosceles triangle is a square or an equilateral triangle, it is somewhat inaccurate. In such a determination method, it is necessary to determine whether or not the lengths of adjacent sides are 1: 1, but whether the two lines are the same length is determined by aligning the ends. Unless they are arranged in the same direction, it is difficult to judge by visual observation. Therefore, it is often possible that the bandage is not stretched enough or vice versa, and the bandage may still loosen after wrapping.

  An object of the present invention is to provide a bandage and a method for manufacturing the same that can accurately determine that the stretched body is stretched to a degree of stretch suitable for fixation to the body.

  A bandage according to a first aspect of the present invention is a bandage that is used by being stretched when fixed to a body, and includes a base material having stretchability along a predetermined stretch direction. The base material has a display surface for displaying a pattern for judging the degree of extension. The pattern includes a linear first line and a second line that intersect at least one acute angle or obtuse angle before the substrate is stretched. The first line and the second line are such that the at least one acute angle or obtuse angle changes substantially at a right angle in an optimal stretched state in which the substrate is stretched to a stretch suitable for fixation to the body. It is configured as follows.

  Here, the pattern applied to the display surface of the bandage includes two straight lines (a first line and a second line) that intersect the V shape, the T shape, or the X shape. . The angle formed by the two lines is an acute angle or an obtuse angle before the bandage is stretched, but changes when the bandage is stretched along the direction of expansion and contraction, and is substantially perpendicular in the optimum stretched state. That is, here, the bandage is appropriate by checking visually whether or not the two lines intersect substantially at right angles, in other words, whether or not the angle of interest has changed to approximately 90 °. It can be determined that the degree of expansion has been reached. By the way, in the case where two lines intersect, if the person makes a visual decision, the angle formed by the two lines is a right angle rather than whether or not the lengths of the two lines are equal. It is easier to accurately determine whether or not there is. Accordingly, it can be accurately determined here that the bandage has been stretched to a degree of stretch suitable for fixation to the body.

  The state where two lines “cross” usually means a state where two lines intersect at a certain point. However, in the state where the two lines are “intersecting” here, strictly speaking, although the two lines do not intersect, at least one of the intersections that should exist if the line is extended. Since it is interrupted in the vicinity, it is assumed that a state where the viewer looks or feels that the two lines substantially intersect (see FIGS. 6 and 7, etc.) is included. Further, the “straight line” here includes a line such as a wavy line or a broken line as long as it extends straight as a whole. Further, the “line” here is a concept including a “line diagram” having a certain width.

  A bandage according to a second aspect of the present invention is a bandage according to the first aspect, wherein the first line and the second line are adjacent to each other at least one set in a state before the base material is stretched. Intersecting to form an acute angle and an obtuse angle, and in the optimal extension state, the acute angle and the obtuse angle are each configured to change substantially at a right angle.

  Here, there is at least one set of acute and obtuse angles adjacent to each other and totaling approximately 180 ° before the bandage is stretched. In other words, two lines (the first line and the second line) intersect in a T-shape or an X-shape with an acute angle and an obtuse angle. The set of acute angles and obtuse angles are substantially perpendicular to each other in the optimal extension state. Therefore, here, it is possible to determine whether each has reached approximately 90 ° while comparing two adjacent angles that are approximately 180 ° in total, so that the accuracy of the determination is increased. . More specifically, for example, it is assumed that the acute angle is 85 ° and the obtuse angle is changed to 95 °, with little extension. In this case, both angles can be seen as 90 °, but there is an opening of 10 ° in both angles, so that a person can easily grasp that the extension is not enough. The same applies to the case of excessive expansion. Therefore, here, it can be more intuitively determined that the optimal extension state has been reached.

  The bandage according to a third aspect of the present invention is the bandage according to the first aspect or the second aspect, wherein the first line and the second line are circumferential in a state before the base material is stretched. Are intersected so as to form two sets of acute angles and obtuse angles, and in the optimum extension state, the acute angles and the obtuse angles each change substantially at right angles.

  Here, in the state before the bandage is stretched, there are two sets of acute angles and obtuse angles that are approximately 360 ° in total in the circumferential direction. In other words, two lines (the first line and the second line) intersect with each other in an X shape with an acute angle and an obtuse angle. The two sets of acute angles and obtuse angles are substantially perpendicular to each other in the optimal extension state. Therefore, here, it is possible to determine whether or not each of the four angles aligned in the circumferential direction, which is approximately 360 ° in total, has reached approximately 90 °, so that the accuracy of the determination is increased. It will be. More specifically, it is assumed that, for example, the 85 ° acute angle becomes two (vertical angle with respect to each other) and the 95 ° obtuse angle becomes two (vertical angle with respect to each other). In this case, each of these angles can be seen as 90 °, but since there is an opening of 10 ° between adjacent angles, a person can easily grasp that the extension is insufficient. The same applies to the case of excessive expansion. Therefore, here, it can be more intuitively determined that the optimal extension state has been reached.

  A bandage according to a fourth aspect of the present invention is a bandage according to any of the first to third aspects, wherein the first line and the second line have different angles with respect to the expansion / contraction direction. Do it.

  If the two lines (the first line and the second line) make the same angle with respect to the expansion / contraction direction, the two lines in the optimal expansion state each have an angle of 45 ° with respect to the expansion / contraction direction. Will do. On the other hand, when the two lines make different angles with respect to the expansion / contraction direction (that is, the angle formed by the two lines is inclined with respect to the expansion / contraction direction), The angle formed by one of the lines with the expansion / contraction direction is smaller than 45 °. By the way, when a person pulls the bandage with both hands in the stretching direction, it is usually considered that the left and right eyes of the person are along the stretching direction or a direction perpendicular thereto. Then, since the two lines are at different angles with respect to the expansion / contraction direction here, the angle formed by one of the two lines and the direction in which the person feels left and right or up and down in the optimal extension state is Less than 45 °. In other words, since the deviation between the direction in which one of the two lines extends and the direction in which a person feels left and right or up and down is small, it is more intuitively determined whether or not the angle formed by the two lines is substantially a right angle. can do.

  A bandage according to a fifth aspect of the present invention is a bandage according to any one of the first aspect to the fourth aspect, wherein the design extends in parallel with the plurality of first lines extending in parallel with each other, A plurality of second lines that form an acute angle and an obtuse angle with respect to the plurality of first lines in a state before extension of the base material.

  Here, it is possible to more intuitively determine whether or not the optimum extension state has been reached while viewing a plurality of acute angles and obtuse angles.

  A bandage according to a sixth aspect of the present invention is the bandage according to any one of the first to fifth aspects, wherein the design is parallel to the three or more first lines extending in parallel to each other. And three or more second lines that form an acute angle and an obtuse angle with respect to the three or more first lines in a state before extending the base material.

  Here, it is possible to more intuitively determine whether or not the optimum extension state has been reached while viewing a plurality of acute angles and obtuse angles.

  The bandage according to the seventh aspect of the present invention is the bandage according to any one of the first to sixth aspects, further comprising an adhesive layer. The said adhesion layer is formed in the surface on the opposite side to the said display surface in the said base material. Here, the bandage provided with the design as described above can be realized as an adhesive sheet or an adhesive tape.

  A method of manufacturing a bandage according to an eighth aspect of the present invention is a method of manufacturing a bandage that is used by being stretched when fixed to a body, the step of manufacturing a sheet body, and a plurality of desired shapes from the sheet body Cutting the bandage. The sheet body has a stretchability along a predetermined stretch direction, and has a display surface for displaying a pattern for determining the stretch degree. The step of manufacturing the sheet body includes a plurality of linearly extending first lines extending in parallel with each other so that a large number of parallel squares are arranged in a lattice shape over the entire display surface in a state before the base material is stretched. Forming the pattern including one line and a plurality of linear second lines extending parallel to each other and intersecting the plurality of first lines so as to form an acute angle and an obtuse angle. The acute angle and the obtuse angle are each configured to be deformed substantially at a right angle in an optimal extension state in which the sheet body is extended to an extension degree suitable for fixing to the body.

  In the case where a large number of bandages are cut out from the sheet body of the above aspect, the corners formed by the two lines according to the first aspect can be efficiently included in these bandages. Therefore, the bandage according to the first aspect can be easily mass-produced.

  According to the present invention, the bandage is properly determined by visually checking whether the two lines intersect substantially at right angles, in other words, whether the angle of interest has changed to approximately 90 °. It is possible to determine that the degree of expansion has been reached. Accordingly, it can be accurately determined here that the bandage has been stretched to a degree of stretch suitable for fixation to the body.

The top view which shows the state before use of the adhesive tape (bandage) which concerns on one Embodiment of this invention. Side sectional drawing of the adhesive tape before use. (A) The figure explaining a mode that an adhesive tape is affixed on a knee joint. (B) The figure which shows the mode after affixing an adhesive tape on a knee joint. (A) The elements on larger scale of the display surface of the adhesive tape before expansion | extension. (B) The elements on larger scale of the display surface of the adhesive tape in an optimal expansion | extension state. The figure explaining a mode that the square contained in the design of an adhesive tape deform | transforms. The elements on larger scale of the display surface of the adhesive tape before the extension which concerns on a modification. The elements on larger scale of the display surface of the adhesive tape before the expansion | extension which concerns on another modification. The elements on larger scale of the display surface of the adhesive tape before the extension concerning another modification. The elements on larger scale of the display surface of the adhesive tape before the extension concerning another modification. The elements on larger scale of the display surface of the adhesive tape before the extension concerning another modification. The elements on larger scale of the display surface of the adhesive tape before the extension concerning another modification.

  Hereinafter, an embodiment of a bandage and a manufacturing method thereof according to the present invention will be described with reference to the drawings.

<1. Overall composition of bandage>
The bandage according to the present embodiment is realized as an adhesive tape 1. FIG. 1 is a plan view of the adhesive tape 1 before use, and FIG. 2 is a side sectional view thereof. As shown in FIGS. 1 and 2, the adhesive tape 1 includes a base material 10 and an adhesive layer 2 formed on one surface of the base material 10. A protective sheet 3 is attached to the surface of the pressure-sensitive adhesive layer 2 opposite to the base material 10 so as to sandwich and cover the pressure-sensitive adhesive layer 2 with the base material 10. The protective sheet 3 can be easily peeled from the adhesive layer 2 by hand. When the adhesive tape 1 is used, the protective sheet 3 is peeled off and the adhesive layer 2 is exposed on one side of the substrate 10. Then, by sticking the exposed adhesive layer 2 to the body, the adhesive tape 1 can be fixed to the body by the adhesive force.

  In this embodiment, the base material 10 is comprised so that it may have the elasticity along the direction of arrow A 1 shown in FIG. And when attaching the adhesive tape 1 to a body, the base material 10 is extended | stretched by the hand in the expansion-contraction direction A1, so that the adhesive tape 1 may not come loose after attachment. Thereby, the tension | tensile_strength of the adhesive tape 1 increases and it becomes possible to fix the adhesive tape 1 to a body firmly. However, whether or not the adhesive tape 1 can be firmly fixed to the body depends on whether or not the base material 10 is stretched to an appropriate degree of stretching at the time of attachment. For this reason, the adhesive tape 1 is devised to notify the worker of an appropriate degree of expansion so that even an unfamiliar person can perform the attachment work well.

  Specifically, the base material 10 has a display surface 10 a on the surface opposite to the adhesive layer 2 for displaying a design for determining the degree of elongation of the base material 10. The design is deformed as the base material 10 is stretched, and will be described in detail later. However, the design is designed to have a predetermined shape in the optimal stretched state. That is, the operator can intuitively and accurately determine that the optimal extension state has been reached by visually checking the deformed pattern. The optimum stretched state is a state in which the base material 10 is stretched to a degree of stretch suitable for fixing to the body.

  Although the material of the base material 10 is not specifically limited, For example, it can be set as the cloth material made from cotton or polyurethane. Further, the material of the pressure-sensitive adhesive layer 2 is not particularly limited as long as the adhesion to the body can be ensured. For example, an acrylic pressure-sensitive adhesive can be used. Various materials can be selected as the material of the protective sheet 3, for example, made of paper with an appropriate coating that facilitates peeling from the adhesive layer 2 on the surface in contact with the adhesive layer 2. Can do.

  The pressure-sensitive adhesive tape 1 according to the present embodiment is a knee joint taping. Therefore, the adhesive tape 1 is formed in a predetermined shape in advance so that it can be appropriately attached to the knee joint. Specifically, as shown in FIG. 1, the adhesive tape 1 has a generally rectangular shape as a whole, and slits S <b> 1 and S <b> 2 that extend straight from the vicinity of the center of both short sides toward the vicinity of the central portion 15 of the adhesive tape 1. Is formed. As a sticking procedure, as shown in FIG. 3A, the central portion 15 of the adhesive tape 1 is stuck on the back side of the knee. Thereafter, the four elongate tape portions 11 to 14 extending on both sides of the slits S1 and S2 are wound around the kneecap as shown in FIG. 3B while being pulled by hand so as to be in the optimum stretched state. At this time, it is necessary to peel off the protective sheet 3 from the pressure-sensitive adhesive tape 1, but it is preferable that the protective sheet 3 is peeled off partially while being cut off. The shape of the pressure-sensitive adhesive tape 1 described here is an example, and the pressure-sensitive adhesive tape 1 can be formed into various shapes in accordance with applications. For example, if it is taping for an elbow joint, it can be set as the shape suitable for protecting an elbow joint. In addition, the entire shape of the adhesive tape 1 is simply a rectangular shape (it is not necessary to be an elongated shape, in which case it can be referred to as an adhesive “sheet” rather than an adhesive “tape”). It is also possible to cut out a sheet or tape of any shape according to the purpose by using a wrinkle or the like as appropriate.

<2. Design>
Hereinafter, with reference to FIG. 4 and FIG. 5, a pattern for determining the degree of expansion of the base material 10 formed on the display surface 10 a of the adhesive tape 1 according to the present embodiment will be described in detail.

  In the present embodiment, as shown in FIG. 4, a large number of first lines L1 and a large number of second lines L2 are provided over the entire display surface 10a. The first lines L1 extend in parallel with each other at a constant interval, and the second lines L2 also extend in parallel with each other at a predetermined interval. These lines L1 and L2 extend linearly, and the first line L1 and the second line L2 intersect each other. As a result, a pattern in which a large number of quadrilaterals B are arranged in a lattice pattern is formed on the display surface 10a.

  More specifically, the first line L1 and the second line L2 intersect to form an acute angle and an obtuse angle before the base material 10 is stretched. Therefore, the quadrangle B is a parallelogram B1 in a state before the base material 10 is stretched. On the other hand, in the optimum extension state, the angles formed by the first line L1 and the second line L2 change approximately at right angles. Therefore, the quadrangle B becomes the rectangle B2 in the optimal extension state, and in particular, in the present embodiment, becomes the square.

  That is, the angle formed by the intersection of the first line L1 and the second line L2 is an acute angle or an obtuse angle, respectively, in the state before the base material 10 is stretched, but the base material 10 is along the expansion / contraction direction A1. Are changed by being stretched to each other, and are each approximately perpendicular to each other in the optimum stretched state. Therefore, it is possible to determine whether or not the lines L1 and L2 intersect substantially at right angles, in other words, whether or not the angle formed by the intersection of the lines L1 and L2 has changed to approximately 90 °. It can be determined that the tape 1 has reached an appropriate degree of stretching. That is, it is possible to intuitively and accurately determine that the optimal extension state has been reached.

  In the present embodiment, as shown in FIG. 4, in the state before the base material 10 is stretched, the interval between the first lines L1 and the interval between the second lines L2 are different. Can be equal. When these are made equal, the parallelogram B1 before stretching of the base material 10 becomes a rhombus, and the rectangle B2 in the optimum stretched state is not a square but a simple rectangle. Further, the intervals between the multiple first lines L1 may be changed without being constant. The same applies to the interval between the second lines L2.

  In the present embodiment, the first line L1 and the second line L2 intersect in an X shape. Therefore, around the X-shaped intersection, four angles C1 to C4 that are approximately 360 ° in total are arranged in the circumferential direction. In a state before the substrate 10 is stretched, the pair of apex angles C1, C3 are acute angles, and the pair of apex angles C2, C4 are obtuse angles. In this embodiment, as shown in FIG. 5, the angles C1 and C3 are each 75 °, and the angles C2 and C4 are each 105 °. In addition, as described above, these angles C1 to C4 each change substantially at a right angle in the optimal extension state. Therefore, it is possible to determine whether or not each of the four corners C1 to C4 arranged in the circumferential direction has reached approximately 90 °, and to determine whether or not the optimal extension state has been reached. Is possible. More specifically, it is assumed that, for example, two acute angles of 85 ° and two obtuse angles of 95 ° are formed with little extension. In this case, each of these angles can be seen as 90 °, but since there is an opening of 10 ° between adjacent angles, a person can easily grasp that the extension is insufficient. The same applies to the case of excessive expansion. Therefore, it can be determined more intuitively and accurately here that the optimal extension state has been reached. Also, by comparing the four corners C1 to C4 in one quadrangle B, it can be intuitively determined that the optimal extension state has been reached.

  Moreover, in this embodiment, as shown in FIG. 5, the 1st line L1 and the 2nd line L2 are making the different angle with respect to the expansion-contraction direction A1 of the base material 10. As shown in FIG. Specifically, in the state before the base material 10 is stretched, the angle formed by the first line L1 and the expansion / contraction direction A1 is 72 °, and the angle formed by the second line L2 and the expansion / contraction direction A1 is: 33 °. Moreover, in this embodiment, the optimal expansion degree of the adhesive tape 1 is about 40%. As a result, in the optimal extension state, the angles C1 to C4 are each 90 °, and the angle formed between the first line L1 and the expansion / contraction direction A1 is changed to about 66 °, and the second line L2 and the expansion / contraction direction A1. The angle between and changes to about 23 °. In other embodiments, the first line L1 and the second line L2 may be at the same angle with respect to the expansion / contraction direction A1 of the substrate 10.

  When the first line L1 and the second line L2 make the same angle with respect to the expansion / contraction direction A1, these lines L1 and L2 are 45 ° with respect to the expansion / contraction direction A1 in the optimal extension state. Will do. On the other hand, when the lines L1 and L2 form different angles with respect to the expansion / contraction direction A1 (that is, the angle formed by the intersection of the lines L1 and L2 is inclined with respect to the expansion / contraction direction A1) as in the present embodiment. The angle formed between one of the lines L1 and L2 and the expansion / contraction direction A1 in the optimal extension state is smaller than 45 ° (about 23 ° in the above example). By the way, when a person pulls the base material 10 with both hands in the expansion / contraction direction A1, it is usually considered that the left and right eyes of the person are along the expansion / contraction direction A1 or a direction orthogonal thereto. Then, when the lines L1 and L2 are at different angles with respect to the expansion / contraction direction A1, the angle between one of the lines L1 and L2 and the direction in which the person feels left and right or up and down in the optimal extension state is , Smaller than 45 ° (about 23 ° in the above example). That is, since a shift between one extending direction of the lines L1 and L2 and a direction in which a person feels left and right or up and down is small, whether or not an angle formed by the intersection of the two lines L1 and L2 is substantially a right angle. Can be determined more intuitively.

  Further, in the present embodiment, as shown in FIG. 4, a straight line L3 connecting the corners C1 and C3 or the corners C2 and C4 in order to enhance the decoration in a part of the square B of the display surface 10a of the adhesive tape 1, Logo L4 etc. are given. However, these straight lines L3, logos L4, and the like can be omitted, or can be applied in the form of being superimposed on all the rectangles B or on the rectangles B. Furthermore, different colors can be appropriately added to the patterns such as the straight lines L1 to L3, the quadrangle B, and the logo L4.

<3. Manufacturing method>
Hereinafter, the manufacturing method of the adhesive tape 1 which concerns on this embodiment is demonstrated. In addition, the manufacturing method demonstrated below is an example and the adhesive tape 1 can be manufactured also by another method.

  First, the sheet | seat body which has the size which can cut out many adhesive tapes 1 with the same raw material as the base material 10 is manufactured. The shape of the sheet body is, for example, a rectangular shape. At this time, it is preferable that the expansion / contraction direction A1 is formed along one side of the rectangular shape. This is because the sheet body can be used efficiently without waste when a large number of adhesive tapes 1 are cut out later. And the design which has many 1st lines L1 and many 2nd lines L2 as mentioned above on one surface of the said sheet | seat body is printed. In addition, the method of providing the pattern on the sheet body is not limited to this, and for example, the surface of the sheet body may be embossed or the sheet body is manufactured by knitting fibers of different colors. A pattern may be formed.

  Subsequently, an adhesive layer is formed on the surface of the sheet body opposite to the side on which the design is applied. In addition, you may make it provide a pattern after forming an adhesion layer.

  Thereafter, the sheet body is cut into a large number of adhesive tapes 1. In addition, as already demonstrated, the pattern which has many lines L1, L2 as mentioned above is printed on the sheet | seat body before a cutting | disconnection. Therefore, if the pressure-sensitive adhesive tape 1 has a certain size, no matter how the sheet body is cut, the first line L1 and the second line L2 are 1 on all or most of the cut-off pressure-sensitive adhesive tape 1. Alternatively, a plurality of them can be included. Further, one or a plurality of sets of the corners C1 to C4 arranged in the circumferential direction and the parallelogram B1 can be included. Therefore, the pressure-sensitive adhesive tape 1 can be easily mass-produced. Thereafter, the protective sheet 3 is attached to the adhesive layer 2 of each adhesive tape 1.

<4. Modification>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning. For example, the following changes can be made.

<4-1>
In the said embodiment, although the expansion / contraction direction of the base material 10 was limited to one direction, it is not restricted to this aspect, For example, the base material 10 which can be expanded-contracted in two directions of length and width can also be used.

<4-2>
In the said embodiment, although the bandage was formed in the aspect of the adhesive tape, it can also be set as the bandage which does not have an adhesive layer.

<4-3>
In the above-described embodiment, examples of specific numerical values for the angle and the appropriate stretch degree are shown. However, these numerical values depend on the appropriate stretch degree (for example, approximately 30%) of the selected base material. Each angle can be set as appropriate.

<4-4>
The symbols described in the above embodiment are examples, and can be modified as shown in FIGS.

  In the example of FIGS. 6 and 7, the lines L1 and L2 are partially discontinuous, and strictly speaking, the two lines do not intersect. However, since each of these lines L1 and L2 reminds one virtual straight line, a person can intuitively understand the position of the virtual intersection of the two lines L1 and L2. Therefore, in the examples of FIGS. 6 and 7, as in the above embodiment, it is possible to understand the change of the angles C1 to C4 due to the deformation of the lines L1 and L2 and accurately determine that the optimum extension state has been reached. it can.

  In the example of FIG. 8, two lines L1 and L2 are formed in a polygonal line shape. However, since it is formed in a straight line as a whole, it is possible to understand the change of the angles C1 to C4 and accurately determine that the optimum extension state has been reached, as in the above embodiment.

  In the above embodiment, the two lines L1 and L2 intersect in an X shape, but in the example of FIG. 9, they intersect in a T shape. However, in this example as well, there are still two adjacent angles C1 and C2, and therefore it is possible to accurately determine that the optimum stretched state has been reached by the change of these angles C1 and C2.

  Furthermore, in the example of FIG. 10, the two lines L1 and L2 intersect in a V shape. However, since the angle C1 still exists in this example, it can be intuitively determined that the optimal extension state has been reached by the change of the angle C1.

  Further, in the above embodiment, there are a plurality of angles that change to a right angle in the optimal extension state, but as shown in FIG. 11, the number of such angles formed on one pressure-sensitive adhesive sheet is one. There may be.

<4-5>
The base material 10 can be composed of a cloth in which a plurality of yarns are woven or knitted. At this time, if the base material 10 is configured such that the interval between the threads is widened when the base material 10 is stretched, When 10 is extended, the color of the display surface 10a can be changed. In particular, a method of weaving or knitting in which the yarn hidden behind the display surface 10a in the state before stretching appears on the front side of the display surface 10a after stretching, and the colors of both yarns are different. If so, the color of the base material 10 can be changed to the color of the yarn hidden behind the back side. Alternatively, even when the yarn hidden behind such a backside is used as a yarn that changes color when exposed to light such as ultraviolet rays, the base material 10 can be changed in color as it stretches. Then, by adopting such a configuration that changes the color, the above-described pattern deformation can be made more prominent.

1 Adhesive sheet (bandage)
10 Substrate 10a Display surface B1 Parallelogram B2 Square L1 First line L2 Second line C1 to C4 Corner

Claims (4)

A bandage that is stretched and used when secured to the body,
A base material having a display surface for displaying a pattern for determining stretch degree, having stretchability along a predetermined stretch direction;
With
The design includes a plurality of linear first lines extending in parallel to each other so that a plurality of parallel squares are arranged in a lattice shape over the entire display surface in a state before the base material is stretched. A plurality of linear second lines extending parallel to each other and intersecting to form an acute angle and an obtuse angle with respect to the plurality of first lines ,
The acute angle and the obtuse angle are each configured to deform substantially perpendicularly in an optimal stretched state in which the substrate is stretched to a stretch suitable for fixation to the body .
bandage. The first line and the second line form different angles with respect to the stretching direction;
The bandage according to claim 1. An adhesive layer formed on the surface of the substrate opposite to the display surface;
The bandage according to claim 1 or 2. A method of manufacturing a bandage that is stretched and used when fixed to the body,
Producing a sheet body having a stretchability along a predetermined stretch direction and having a display surface for displaying a pattern for judging the stretch degree;
Cutting a plurality of bandages of a desired shape from the sheet body,
Step of manufacturing the sheet body is in a state before expansion of the substrate, so that a plurality of parallel rectangles whole over in a lattice shape of the display surface are arranged, a plurality of linear extending parallel to one another a first line extending parallel to each other, and a plurality of second lines of straight line intersecting at an acute angle and an obtuse angle with respect to said plurality of first lines, comprising forming said pattern ,
The acute angle and the obtuse angle are each configured to be deformed substantially at a right angle in an optimal stretched state in which the sheet body is stretched to a stretching degree suitable for fixing to the body.
Bandage manufacturing method.